Pre-Start-Up; System Checkout - Carrier Aquazone 50PTH036 Installation, Start-Up And Service Instructions Manual

Two-stage water source heat pumps with puron refrigerant
Table of Contents

Advertisement

50PTH,
RATED
FAN
PTV
AIRFLOW
SPEED
UNITS
(Cfm)
High
725
024
Med
PART
650
LOAD
Low
500
High
950
024
FULL
Med
825
LOAD
Low
725
High
950
036
Med
PART
800
LOAD
Low
750
High
1300
036
Med
FULL
1100
LOAD
Low
950
High
1400
048
Med
PART
1300
LOAD
Low
1100
High
1800
048
Med
FULL
1600
LOAD
Low
1400
High
1800
060
Med
PART
1600
LOAD
Low
1400
High
2200
060
Med
FULL
2000
LOAD
Low
18000
High
2100
070
Med
PART
1850
LOAD
Low
1600
High
2500
070
Med
FULL
2350
LOAD
Low
2100
LEGEND
— — Operation Not Recommended

PRE-START-UP

System Checkout —
and before energizing the unit, the following system checks
should be made prior to initial start-up:
1. Verify that the supply voltage to the heat pump is in a
ccordance with the nameplate ratings.
2. Make sure that all electrical connections are tight and
secure.
3. Check the electrical fusing and wiring for the correct size.
IMPORTANT: Ensure cabinet and electrical box are
properly grounded.
4. Verify that the low voltage wiring between the thermostat
and the unit is correct.
5. Verify that the water piping is complete and correct.
6. Check that the water flow is correct, and adjust if
necessary.
7. Check the blower for free rotation, and that it is secured to
the shaft.
8. Verify that vibration isolation has been provided.
9. Unit is serviceable. Be certain that all access panels are
secured in place.
10. Always check incoming line voltage power supply and
secondary control voltage for adequacy. Transformer pri-
maries are dual tapped for 208 and 230 volts. Connect the
Table 8 — ECM Constant CFM Motor Blower Performance Data
ADJUSTMENT
TAP
0.10
+
A
725
A
650
Normal
A
500
-
+
A
950
A
825
Normal
A
725
-
+
A
950
A
800
Normal
A
750
-
+
A
1,300
A
1,100
Normal
A
950
-
+
A
1,400
A
1,300
Normal
A
1,100
-
+
A
1,800
A
1,600
Normal
A
1,400
-
+
A
1,800
A
1,600
Normal
A
1,400
-
+
A
2,200
A
2,000
Normal
A
1,800
-
+
A
2,100
A
1,850
Normal
A
1,600
-
+
A
2,500
A
2,350
Normal
A
2,100
-
After completing the installation,
AIRFLOW (Cfm)
External Static Pressure (in. wg)
0.20
0.30
0.40
0.50
725
725
725
725
650
650
650
650
500
500
500
500
950
950
950
950
825
825
825
825
725
725
725
725
950
950
950
950
800
800
800
800
750
750
750
750
1,300
1,300
1,300
1,300
1,100
1,100
1,100
1,100
950
950
950
950
1,400
1,400
1,400
1,400
1,300
1,300
1,300
1,300
1,100
1,100
1,100
1,100
1,800
1,800
1,800
1,800
1,600
1,600
1,600
1,600
1,400
1,400
1,400
1,400
1,800
1,800
1,800
1,800
1,600
1,600
1,600
1,600
1,400
1,400
1,400
1,400
2,200
2,200
2,200
2,200
2,000
2,000
2,000
2,000
1,800
1,800
1,800
1,800
2,100
2,100
2,100
2,100
1,850
1,850
1,850
1,850
1,600
1,600
1,600
1,600
2,500
2,500
2,500
2,500
2,350
2,350
2,350
2,350
2,100
2,100
2,100
2,100
appropriate tap to ensure a minimum of 18 volts second-
ary control voltage. 24 volts is ideal for best operation.
11. Long length thermostat and control wiring leads may cre-
ate voltage drop. Increase wire gauge or up-size trans-
formers may be required to ensure minimum secondary
voltage supply.
12. The following guidelines are recommended for wiring
between a thermostat and the unit: 18 gage up to 60 ft,
16 gage up to 100 ft and 14 gage up to 140 ft.
13. Do not apply additional controlled devices to the control
circuit power supply without consulting the factory. Do-
ing so may void equipment warranties.
14. Check with all code authorities on requirements involv-
ing condensate disposal/over flow protection criteria.
AIR COIL — To obtain maximum performance, clean the air
coil before starting the unit. A 10% solution of dishwasher
detergent and water is recommended for both sides of the coil.
Rinse thoroughly with water.
24
0.60
0.70
0.80
0.90
725
725
725
650
650
650
500
500
500
950
950
950
825
825
825
725
725
725
950
950
950
950
800
800
800
800
750
750
750
750
1,300
1,300
1,300
1,300
1,100
1,100
1,100
1,100
950
950
950
950
1,400
1,400
1,400
1,400
1,300
1,300
1,300
1,300
1,100
1,100
1,100
1,100
1,800
1,800
1,800
1,800
1,600
1,600
1,600
1,600
1,400
1,400
1,400
1,400
1,800
1,800
1,800
1,800
1,600
1,600
1,600
1,600
1,400
1,400
1,400
1,400
2,200
2,200
2,200
2,200
2,000
2,000
2,000
2,000
1,800
1,800
1,800
1,800
2,100
2,100
2,100
2,100
1,850
1,850
1,850
1,850
1,600
1,600
1,600
1,600
2,500
2,500
2,500
2,500
2,350
2,350
2,350
2,350
2,100
2,100
2,100
2,100
1.00
950
800
750
1,300
1,100
950
1,400
1,300
1,100
1,800
1,600
1,400
1,800
1,600
1,400
2,200
2,000
1,800
2,100
1,850
1,600
2,500
2,350
2,100

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents